National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Light Snow Fog/Mist

31°F

-1°C

Humidity 96%
Wind Speed W 5 mph
Barometer 30.02 in (1016.2 mb)
Dewpoint 30°F (-1°C)
Visibility 1.00 mi
Wind Chill26°F (-3°C)
Last update 17 Jan 12:53 pm EST
Extended Forecast for

Ewing NJ

  • This Afternoon

    This Afternoon: Rain and snow, mainly before 3pm. High near 38. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 38 °F

    Rain/Snow

  • Tonight

    Tonight: A chance of snow, mainly between 4am and 5am. Mostly cloudy, with a low around 28. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow likely, mainly after 7am. Cloudy, with a high near 35. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 35 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 19. West wind around 5 mph.

    Low: 19 °F

    Decreasing
    Clouds

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 34. Southwest wind 5 to 15 mph.

    High: 34 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 22.

    High: 22 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain and snow, mainly before 3pm. High near 38. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tonight
A chance of snow, mainly between 4am and 5am. Mostly cloudy, with a low around 28. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
Snow likely, mainly after 7am. Cloudy, with a high near 35. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 19. West wind around 5 mph.
M.L.King Day
Sunny, with a high near 34. Southwest wind 5 to 15 mph.
Monday Night
Partly cloudy, with a low around 12.
Tuesday
Sunny, with a high near 22.
Tuesday Night
Mostly clear, with a low around 10.
Wednesday
Mostly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ewing NJ
 40.25°N 74.78°W (Elev. 105 ft)
Last Update:
9:30 am EST Jan 17, 2026
Forecast Valid:
1pm EST Jan 17, 2026-6pm EST Jan 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation